Study on applications of terahertz technology

Ji-jun Luo; Su-xia Hou; Jun Xu; Juan-juan Li

doi:10.1117/12.790717

22 February 2008 Study on applications of terahertz technology

Ji-jun Luo, Su-xia Hou, Jun Xu, Juan-juan Li

Proceedings Volume 6622, International Symposium on Photoelectronic Detection and Imaging 2007: Laser, Ultraviolet, and Terahertz Technology; 662203 (2008) https://doi.org/10.1117/12.790717
Event: International Symposium on Photoelectronic Detection and Imaging: Technology and Applications 2007, 2007, Beijing, China

Abstract

Terahertz (THz) technology, as new research topic and technology field which is paid more and more attention by the researchers and governments, has some unique properties which is different from other electromagnetic wave. THz wave is regarded to have potential application in many fields. Existing and emerging applications of terahertz technology in imaging, medicine, biology, space exploration, covert communications, compact radar ranges, industrial controls, terahertz microscopy, terahertz tomography, and homeland security have stimulated intensive research effort in photonics and electronics technologies bracketing the famous terahertz gap from the high and low frequency sides, respectively. Cutoff frequencies and maximum frequencies of operation of InGaAs-based Heterostructure Bipolar Transistors and High Electron Mobility Transistors are now approaching or even exceeding 600 GHz. New ideas of using plasma resonances of two-dimensional electrons for tunable detection and emission of terahertz radiation are being explored and proven experimentally. Plasma effects in polarization-induced electrons and holes in granular pyroelectric/semiconductor heterostructures hold promise of an active THz medium tunable by external electric field or light.

Citation Download Citation

Ji-jun Luo, Su-xia Hou, Jun Xu, and Juan-juan Li "Study on applications of terahertz technology", Proc. SPIE 6622, International Symposium on Photoelectronic Detection and Imaging 2007: Laser, Ultraviolet, and Terahertz Technology, 662203 (22 February 2008); https://doi.org/10.1117/12.790717

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KEYWORDS

Terahertz radiation

Terahertz technology

Diodes

Electronics

Microscopy

Photonics

Plasma

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